From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Martin Langhoff <martin.langhoff@gmail.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Linus Walleij <linus.walleij@linaro.org>,
linux-gpio@vger.kernel.org,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: Re: Diagnosing ACPI trouble related to pinctr_cherryview on 4.4.x
Date: Tue, 22 Mar 2016 17:22:18 +0200 [thread overview]
Message-ID: <20160322152218.GA2099@lahna.fi.intel.com> (raw)
In-Reply-To: <CACPiFCKv=QJ0t5e=9Wm4cC4Spynx-tVCiabL7AcbcOkp_w47fQ@mail.gmail.com>
On Tue, Mar 22, 2016 at 11:09:51AM -0400, Martin Langhoff wrote:
> Hi pinctrl_cherryview maintainers.
> I unsuspectingly bought a laptop for a family member which hits trouble
> with pinctrl_cherryview; it only boots with the module blacklisted or
> acpi=off .
> System is (trying) to run Fedora 23 -- made more difficult by recent
> Fedora kernels having the module built-in.
> Are there any useful debugging steps I can follow to narrow this down?
> Already tried the acpi diagnostics steps (acpi=ht, etc) to no avail.
> thank you!
I think this is a known issue.
Please disable dw_dmac from your .config (or blacklist the module):
CONFIG_DW_DMAC_CORE=n
CONFIG_DW_DMAC=n
You can also enable pinctrl-cherryview.c.
Andy (Cc'd) is working a fix for this DMA hang issue.
next parent reply other threads:[~2016-03-22 15:22 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CACPiFCKv=QJ0t5e=9Wm4cC4Spynx-tVCiabL7AcbcOkp_w47fQ@mail.gmail.com>
2016-03-22 15:22 ` Mika Westerberg [this message]
2016-03-22 15:41 ` Diagnosing ACPI trouble related to pinctr_cherryview on 4.4.x Martin Langhoff
2016-03-22 15:49 ` Mika Westerberg
2016-03-22 15:51 ` Mika Westerberg
2016-03-22 15:59 ` Martin Langhoff
2016-03-22 16:22 ` Mika Westerberg
2016-03-22 16:59 ` Martin Langhoff
2016-03-22 17:36 ` Andy Shevchenko
2016-03-22 17:53 ` Martin Langhoff
2016-03-22 20:32 ` Martin Langhoff
2016-03-23 11:13 ` Mika Westerberg
2016-03-23 13:25 ` Martin Langhoff
2016-03-23 11:25 ` Mika Westerberg
2016-03-23 13:26 ` Martin Langhoff
2016-03-28 20:57 ` Martin Langhoff
2016-03-29 9:15 ` Mika Westerberg
2016-03-31 9:24 ` Mika Westerberg
2016-03-30 10:33 ` Andy Shevchenko
2016-03-22 15:58 ` Andy Shevchenko
2016-03-22 15:18 Martin Langhoff
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